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JB4+P3 Gauge = CEL and Engine Malfunction?
Hello,
Just installed a P3 vent gauge to my N55 135i. It is stock other than a JB4. When driving home the car would not boost over 1-2psi and eventually threw an "engine malfunction" warning on the iDrive system. I turned the car off and then on and these codes came up on the P3:
2dd6
2dd8
2c90
318d
2c57
Any ideas? From my reading it seems the P3 just interferes with my JB4 and that may the cause. If it is, I have a P3 for sale!
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